What about just putting them at normal placement on a standard stereo bar?
The main problem is that there's no damn mounts for the mics besides clips, so you fashion something up. Sonically, w/ omnis, you really gotta do something more than putting them close together and pointing them because you won't get much (if any) stereo seperation. When you wear them on your head, your head is acting as a baffle, which gives you stereo seperation. The j-disc would do the same thing, except on a stand. Split omnis also gives great stereo seperation as well.
I got my stand from ebay. The best way, most low profile way would be to do the jecklin disk. FWIW, everything you need to know about split omnis and jecklin discs, including a number of pics of an awesome Jdisc Moke made for 406x's is located
here. enjoy!